2023 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2022 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2020 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2019 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2018 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2016 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2015 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2014 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant

2013 Washington Code 18.35.300 – No requirement to contract with speech-language pathology assistant